Home / 185,012.93-255,317.99-100,130.06

Finding the Fourth Proportional to 185,012.93, 255,317.99 and 100,130.06

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Solution

The fourth proportional to 185,012.93, 255,317.99 and 100,130.06 is: 138,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,012.93 : 255,317.99 = 100,130.06 : x
  2. Step 2: Convert to fraction form
    185,012.93/255,317.99 = 100,130.06/x
  3. Step 3: Cross multiply
    185,012.93x = 255,317.99 × 100,130.06
  4. Step 4: Simplify right side
    185,012.93x = 25,565,003,880.54
  5. Step 5: Solve for x
    x = 25,565,003,880.54/185,012.93
  6. Step 6: Final answer
    x = 138,179.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.